REPLACEMENT PARTS MANUAL
QW/QC Series Energy Recovery Ventilator
Models: QW 920-0032 QC 920-0531
General Notes
Revised and/or additional pages may be issued from time to time.
A complete and current manual consists of pages shown in the following contents section.
Important
Contact the installing and/or local Bard distributor for all parts requirements. Make sure to have the complete model and serial number available from the unit rating plates.
Contents
Functional and Cabinet Components
Exploded View: Page 2
Usage List: Page 3
Cassette Components
Exploded View: Page 4
Usage List: Page 4
Control Panel
Layout View: Page 5
Usage List: Page 5
Blower Assembly
Exploded View: Page 6
Usage List: Page 6
Functional and Cabinet Components
Exploded View: This diagram shows an assembly of various parts. Key components include a blower motor (2), motor mount (3), terminal block assembly (4), control panel cover (5), blower housing (6), upper blower box partition (7), right end upper blower box (8), wire harnesses (9, 10, 11), control panel (12), right end (13), side angles (14), left end (15), wire harness (16), right end lower blower box (17), right end assembly (17), wire harness (18), lower blower box assembly (19), wrapper assembly (19), lower partition assembly (20), top assembly (21), left end upper blower box (22), left end assembly (22), front fill (23), cassette - complete (24), upper blower box assembly (25), left seal assembly (26), right seal assembly (27), and left end lower blower box (28). The diagram shows these parts arranged in their relative positions within the overall unit.
Usage List
| Drawing No. | Part No. | Description | 920-0032 | 920-0531 |
|---|---|---|---|---|
| 1 | 8552-001 | Blower Motor Capacitor | 2 | 2 |
| 2 | 8101-024 | Blower Motor | 2 | 2 |
| 3 | 128-018 | Motor Mount | 4 | 4 |
| 4 | S910-1637 | Terminal Block Assembly | 1 | 1 |
| 5 | 132-147 | Control Panel Cover | 1 | 1 |
| 6 | Blower Housing | See Blower Housing Drawing | 2 | 2 |
| 7 | 520-307 | Upper Blower Box Partition | 1 | 1 |
| 8 | 100-332 | Right End Upper Blower Box | 1 | 1 |
| 9 | 3000-1059 | Wire Harness | 1 | 1 |
| 10 | 3000-1048 | Wire Harness | 1 | 1 |
| 11 | 3000-1147 | Wire Harness | 1 | 1 |
| 12 | 116-193 | Control Panel | 1 | 1 |
| 13 | 100X331 | Right End | 1 | 1 |
| 14 | 104-989 | Side Angle | 2 | 2 |
| 15 | 100Y331 | Left End | 1 | 1 |
| 16 | 3000-1061 | Wire Harness | 1 | 1 |
| 17 | 500X278 | Right End Lower Blower Box | 1 | 1 |
| 17 | 500X395 | Right End Assembly | 1 | 1 |
| 18 | 3000-1060 | Wire Harness | 1 | 1 |
| 19 | 538-084 | Lower Blower Box Assembly | 1 | 1 |
| 19 | 538-152 | Wrapper Assembly | 1 | 1 |
| 20 | 520-318 | Lower Partition Assembly | 1 | 1 |
| 21 | 106-188 | Top Assembly | 1 | 1 |
| 22 | 500-333 | Left End Upper Blower Box | 1 | 1 |
| 22 | 500Y395 | Left End Assembly | 1 | 1 |
| 23 | 114-111 | Front Fill | 1 | 1 |
| 24 | 5070-036 | Cassette - Complete | 1 | 1 |
| 25 | 538-183 | Upper Blower Box Assembly | 1 | 1 |
| 26 | 139-110 | Left Seal Assembly | 1 | 1 |
| 27 | 139-111 | Right Seal Assembly | 1 | 1 |
| 28 | 500Y278 | Left End Lower Blower Box | 1 | 1 |
| NS | 3000-1073 | Wire Harness | 1 | 1 |
| NS | 538-151 | Exhaust Duct Assembly | 1 | 1 |
| NS | 4056-157 | Wiring Diagram | 1 | 1 |
| NS | 8407-077 | Stepdown Transformer 277V/230V 1.0KVA | 1 | |
| NS | 8614-058 | 2-Pole Enclosed Fuse Holder | 1 | |
| NS | 8614-047 | 3.2A Class CC Fuse | 2 |
Cassette Components
Exploded View: This diagram illustrates the cassette assembly. It features a cassette plate assembly (1), right support angle (2), left support angle (3), support bar assembly (4), cassette wheels (5), a pulley (6), a motor (7), hub covers (8), wheel shafts (9), a drive belt & pulley kit (10), and a center block assembly (11). Machine screws (12) and nylon spacers (13) are also shown. The diagram depicts two cassette wheels mounted on shafts, driven by a motor and pulley system, all attached to a plate assembly with support angles and bars.
Usage List
| Drawing No. | Part No. | Description | 920-0032 | 920-0531 |
|---|---|---|---|---|
| 1 | 539-168 | Cassette Plate Assembly | 1 | 1 |
| 2 | 104-1127 | Right Support Angle | 1 | 1 |
| 3 | 104-1128 | Left Support Angle | 1 | 1 |
| 4 | S140-288 | Support Bar Assembly | 1 | 1 |
| 5 | 5070-043 | Cassette Wheel | 2 | 2 |
| 6 | 5501-019 | Pulley | 1 | 1 |
| 7 | 8101-016 | Motor | 1 | 1 |
| 8 | 142-104 | Hub Cover | 2 | 2 |
| 9 | 1912-012 | Wheel Shaft | 2 | 2 |
| 10 | 8620-196 | Drive Belt & Pulley Kit | 2 | 2 |
| 11 | S5070-047 | Center Block Assembly | 1 | 1 |
| 12 | 1012-164 | Machine Screw | 4 | 4 |
| 13 | 8611-111 | Nylon Spacer | 4 | 4 |
| NS | 5070-052 | 3/4" Bearing/Hub Assembly | 2 | 2 |
| NS | 8620-204 | Bearing/Hub, Shaft & Hardware Kit | 2 | 2 |
| NS | 8620-205 | Shaft & Hardware Kit | 2 | 2 |
Control Panel
Layout View: This diagram shows the control panel itself. It is a rectangular board with various electrical components mounted on it. Labeled components include the control panel (1), blower relay (2), cassette motor capacitor (3), transformer (4), and terminal block (5). A speed switch (NS) is also indicated. The diagram shows the arrangement of these components on the panel, with connection points and terminals visible.
Usage List
| Drawing No. | Part No. | Description | 920-0032 | 920-0531 |
|---|---|---|---|---|
| 1 | 116-193 | Control Panel | 1 | 1 |
| 2 | 8201-008 | Blower Relay | 1 | 1 |
| 3 | 8552-100 | Cassette Motor Capacitor | 1 | 1 |
| 4 | 8407-043 | Transformer | 1 | 1 |
| 5 | 8607-017 | Terminal Block | 1 | 1 |
| NS | 8406-101 | Speed Switch | 1 | 1 |
Blower Assembly
Exploded View: This diagram shows the blower assembly. It includes a blower wheel (1), an inlet ring (2), and the blower housing (3). The diagram shows the blower wheel fitting inside the housing, with the inlet ring positioned at the opening.
Usage List
| Drawing No. | Part No. | Description | 920-0032 | 920-0531 |
|---|---|---|---|---|
| 1 | 5152-078 | Blower Wheel | 1 | 1 |
| 2 | 144-188 | Inlet Ring | 2 | 2 |
| 3 | 151-119 | Blower Housing | 1 | 1 |
Bard Manufacturing | Bard Manufacturing
